12 #include "beasm_asm_gnu.h"
15 static struct obstack *get_obstack_for_segment ( gnuasm_privdata_t *privdata, asm_segment_t segment ) {
18 case ASM_SEGMENT_CONST:
19 return &privdata->rdata_obst;
21 case ASM_SEGMENT_DATA_INIT:
22 return &privdata->data_obst;
24 case ASM_SEGMENT_CODE:
25 return &privdata->code_obst;
27 case ASM_SEGMENT_DATA_UNINIT:
28 return &privdata->common_obst;
31 assert(0 && "unknown segment type");
39 * the dumper callbacks
42 static void gnuasm_dump_align(void *data, asm_segment_t segment, int align) {
43 gnuasm_privdata_t *privdata = data;
44 struct obstack* obst = get_obstack_for_segment( privdata, segment );
45 obstack_printf(obst, "\t.align %d\n", align);
49 static void gnuasm_dump_arith_tarval(void *data, asm_segment_t segment, tarval *tv, int bytes)
51 gnuasm_privdata_t *privdata = data;
52 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
57 obstack_printf(obst, "0x%02x", get_tarval_sub_bits(tv, 0));
60 obstack_printf(obst, "0x%02x%02x", get_tarval_sub_bits(tv, 1), get_tarval_sub_bits(tv, 0));
64 obstack_printf(obst, "0x%02x%02x%02x%02x",
65 get_tarval_sub_bits(tv, 3), get_tarval_sub_bits(tv, 2), get_tarval_sub_bits(tv, 1), get_tarval_sub_bits(tv, 0));
69 obstack_printf(obst, "0x%02x%02x%02x%02x%02x%02x%02x%02x",
70 get_tarval_sub_bits(tv, 7), get_tarval_sub_bits(tv, 6), get_tarval_sub_bits(tv, 5), get_tarval_sub_bits(tv, 4), get_tarval_sub_bits(tv, 3), get_tarval_sub_bits(tv, 2), get_tarval_sub_bits(tv, 1), get_tarval_sub_bits(tv, 0));
74 fprintf(stderr, "Try to dump an tarval with %d bytes\n", bytes);
80 static void gnuasm_dump_atomic_decl(void *data, asm_segment_t segment, int bytes)
82 gnuasm_privdata_t *privdata = data;
83 struct obstack* obst = get_obstack_for_segment( privdata, segment );
88 obstack_printf(obst, "\t.byte\t");
92 obstack_printf(obst, "\t.value\t");
96 obstack_printf(obst, "\t.long\t");
100 obstack_printf(obst, "\t.quad\t");
104 fprintf(stderr, "Try to dump an tarval with %d bytes\n", bytes);
108 // obstack_printf(obst, "\n");
111 static void gnuasm_dump_string(void *data, asm_segment_t segment, entity *ent)
113 gnuasm_privdata_t *privdata = data;
116 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
118 obstack_printf(obst, "\t.string \"");
119 n = get_compound_ent_n_values(ent);
121 for (i = 0; i < n-1; ++i) {
125 irn = get_compound_ent_value(ent, i);
126 c = (int) get_tarval_long(get_Const_tarval(irn));
129 case '"' : obstack_printf(obst, "\\\""); break;
130 case '\n': obstack_printf(obst, "\\n"); break;
131 case '\r': obstack_printf(obst, "\\r"); break;
132 case '\t': obstack_printf(obst, "\\t"); break;
135 obstack_printf(obst, "%c", c);
137 obstack_printf(obst, "%O", c);
141 obstack_printf(obst, "\"\n");
145 static void gnuasm_dump_declare_initialized_symbol(void *data, asm_segment_t segment, const char* ld_name, int bytes, int align, visibility visibility)
147 gnuasm_privdata_t* priv_data = data;
149 /* get the obstack for the given segment (const, data) */
150 struct obstack* obst = get_obstack_for_segment ( priv_data, segment );
152 /* if the symbol is externally visible, declare it so. */
153 if (visibility == visibility_external_visible)
154 obstack_printf(obst, ".globl\t%s\n", ld_name);
156 obstack_printf(obst, "\t.type\t%s,@object\n", ld_name);
157 obstack_printf(obst, "\t.size\t%s,%d\n", ld_name, bytes);
158 obstack_printf(obst, "\t.align\t%d\n", align);
159 obstack_printf(obst, "\t%s:\n", ld_name);
162 static void gnuasm_dump_declare_uninitialized_symbol(void *data, asm_segment_t segment, const char* ld_name, int bytes, int align, visibility visibility)
164 gnuasm_privdata_t *priv_data = data;
166 /* external symbols are not required to be declared in gnuasm. */
167 if(visibility == visibility_external_allocated) return;
169 /* declare local, uninitialized symbol to the uninit-obst */
170 obstack_printf(&priv_data->common_obst, "\t.comm\t%s,%d,%d\n", ld_name, bytes, align);
173 static void gnuasm_dump_zero_padding(void *data, asm_segment_t segment, int size)
175 gnuasm_privdata_t *privdata = data;
176 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
177 obstack_printf(obst, "\t.zero\t%d\n", size);
180 ////////////////////////////////////////////////////////////////////////////
182 static void gnuasm_dump_arith_op(void *data, asm_segment_t segment, asm_arith_operation_t op)
184 gnuasm_privdata_t *privdata = data;
185 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
187 case ASM_ARITH_OPERATION_ADD:
188 obstack_printf(obst, "+");
190 case ASM_ARITH_OPERATION_SUB:
191 obstack_printf(obst, "-");
193 case ASM_ARITH_OPERATION_MUL:
194 obstack_printf(obst, "*");
197 //obstack_printf(obst, "+");
200 static void gnuasm_dump_symconst(void *data, asm_segment_t segment, ir_node *init)
202 gnuasm_privdata_t *privdata = data;
203 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
204 switch (get_SymConst_kind(init)) {
205 case symconst_addr_name:
206 obstack_printf(obst, "%s", get_id_str(get_SymConst_name(init)));
209 case symconst_addr_ent:
210 obstack_printf(obst, "%s", get_entity_ld_name(get_SymConst_entity(init)));
214 obstack_printf(obst, "%d", get_type_size_bytes(get_SymConst_type(init)));
218 assert(0 && "dump_atomic_init(): don't know how to init from this SymConst");
222 static void gnuasm_dump_newline(void *data, asm_segment_t segment)
224 gnuasm_privdata_t *privdata = data;
225 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
226 obstack_printf(obst, "\n");
229 //////////////////////////////////////////////////////////////////////////////
231 static void gnuasm_dump_header(void *data) {
232 /*gnuasm_privdata_t *privdata = data;*/
235 static void gnuasm_dump_footer(void *data) {
236 /*gnuasm_privdata_t *privdata = data;*/
239 static void gnuasm_dump_segment_header(void *data) {
240 /*gnuasm_privdata_t *privdata = data;*/
243 //////////////////////////////////////////////////////////////////////////////
245 assembler_t *gnuasm_create_assembler ( void ) {
247 gnuasm_privdata_t *priv_data = malloc ( sizeof(gnuasm_privdata_t ));
248 assembler_t *assembler = malloc ( sizeof( assembler_t ));
249 memset(assembler, 0, sizeof( assembler_t ));
250 assembler->private_data = priv_data;
252 obstack_init (&priv_data->common_obst);
253 obstack_init (&priv_data->data_obst);
254 obstack_init (&priv_data->rdata_obst);
255 obstack_init (&priv_data->code_obst);
258 assembler->dump_declare_uninitialized_symbol = gnuasm_dump_declare_uninitialized_symbol;
259 assembler->dump_declare_initialized_symbol = gnuasm_dump_declare_initialized_symbol;
261 // assembler->dump_align = (dump_align_proc) &gnuasm_dump_align;
262 assembler->dump_arith_tarval = gnuasm_dump_arith_tarval;
263 assembler->dump_atomic_decl = gnuasm_dump_atomic_decl;
264 assembler->dump_string = gnuasm_dump_string;
265 assembler->dump_zero_padding = gnuasm_dump_zero_padding;
266 assembler->dump_arith_op = gnuasm_dump_arith_op;
267 assembler->dump_symconst = gnuasm_dump_symconst;
268 assembler->dump_newline = gnuasm_dump_newline;
270 assembler->dump_header = gnuasm_dump_header;
271 assembler->dump_footer = gnuasm_dump_footer;
272 assembler->dump_segment_header = gnuasm_dump_segment_header;
279 static void gnuasm_dump_obst(struct obstack *obst, FILE *out) {
280 obstack_grow0 (obst, NULL, 0);
281 fprintf(out, "%s", (char *)obstack_finish(obst));
284 void gnuasm_dump( assembler_t *assembler, FILE *out ) {
286 gnuasm_privdata_t *privdata = assembler->private_data;
288 // fprintf(out, "<COMMON>\n");
289 gnuasm_dump_obst ( &privdata->common_obst, out);
290 fprintf(out, ".data\n");
291 gnuasm_dump_obst ( &privdata->data_obst, out);
292 fprintf(out, ".section .rodata\n");
293 gnuasm_dump_obst ( &privdata->rdata_obst, out);
294 fprintf(out, ".text\n");
295 gnuasm_dump_obst ( &privdata->code_obst, out);
299 void gnuasm_delete_assembler( assembler_t *assembler ) {
300 free( assembler->private_data );